Fluid hydroforming process

Claim 1

IN A PROCESS FOR HYDROFORMING HYDROCARBONS IN CONTACT WITH FINELY DIVIDED HYDROFORMING CATALYST PARTICLES COMPRISING MOLYHBDRNUM OXIDE UPON AN ALUMINA-CONTAINING SUPPORT IN ACCORDANCE WITH THE FLUIDIZED SOLIDS TECHNIQUE AT TEMPERATURES BETWEEN ABOUT 850* F. AND 950* F., AT PRESSURES OF BETWEEN ABOUT 50 AND 500 LBS. PER SQ. INCH AND AT CATALYST TO OIL WEIGHT RATIOS OF ABOUT 0.5 TO 1.5, THE IMPROVEMENT WHICH COMPRISES CONTINUOUSLY WITHDRAWING A STREAM OF CATALYST PARTICLES FROM A REACTION ZONE, REGENERATING THE WITHDRAWN CATALYST PARTICLES BY BURNING CARBONACEOUS DEPOSITS THEREFROM AT ELEVATED TEMPERATURES IN A SEPARATE REGENERATION ZONE, WITHDRAWING A SECOND OR RECYCLE STREAM OF CATALYST FROM THE REACTION ZONE, WITHDRAWING A STREAM OF REGENERATED CATALYST PARTICLES FROM THE REGENERATION ZONE, MIXING THE STREAM OF REGENERATED CATALYST PARTICLES SUBSTANTIALLY AT REGENERATOR TEMPERATURE WITH THE SECOND STREAM OF REACTOR CATALYST SUBSTANTIALLY AT REACTOR TEMPERATURE, TREATING THE FRESHLY REGENERATED CATALYST IN ADMIXTURE WITH THE RECYCLE REACTOR CATALYST WITH A HYDROGEN-RICH GAS IN ORDER TO REDUCE THE MOLYBDIC OXIDE ON THE REGENERATED CATALYST PARTICLES TO A LOWER, MORE CATALYTICALLY ACTIVE FORM OF MOLYBDENUM OXIDE, DISENGAGING THE CATALYST PARTICLES FROM THE HYDROGEN-RICH PRETREATING GAS AND VAPORS FORMED IN THE HYDROGEN TREATMENT OF THE REGENERATED CATALYST, DISCHARGING THE GASES FROM THE PRETREATING OPERATION INTO THE PRODUCT VAPORS WITHDRAWN FROM THE REACTION ZONE AND DISCHARGING THE HYDROGEN TREATED CATALYST MIXTURE SUBSTANTIALLY FREE OF PRETREATING GAS AND GASEOUS BY-PRODUCTS OF THE PRETREATMENT STEP INTO THE REACTOR DENSE BED THEREBY AVOIDING CONTACT OF THE WATER VAPOR FORMED AS A BY-PRODUCT IN THE PRETREATMENT STEP WITH THE DENSE BED OF CATALYST IN THE REACTION ZONE.